Cevichè is always a good idea but an even better idea once it´s hot outside, I have made a few variations of Cevichè here before but this time I added some tomatoes, this gives the dish a bit more sweet taste and almost resembles an Gazpacho (that I also made a few, link is below) that I think worked really good.
As always choose the freshest fish you can find and spend a little extra, as usual you´re only serving tapas so the cost won´t be too big anyway, good luck. For some other Cevichè recipes check out my previous Shrimp cevichè with mango or Cod cevichè with blood orange and chives.
For the gazpacho i recommend my Gazpacho salad or my Green gazpacho with cream cheese, happy cooking!